DK418974A - - Google Patents

Info

Publication number
DK418974A
DK418974A DK418974A DK418974A DK418974A DK 418974 A DK418974 A DK 418974A DK 418974 A DK418974 A DK 418974A DK 418974 A DK418974 A DK 418974A DK 418974 A DK418974 A DK 418974A
Authority
DK
Denmark
Application number
DK418974A
Other languages
Danish (da)
Other versions
DK135251C (cs
DK135251B (da
Inventor
H Rosenkilde
Original Assignee
H Rosenkilde
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by H Rosenkilde filed Critical H Rosenkilde
Priority to DK418974AA priority Critical patent/DK135251B/da
Priority to DE2512268A priority patent/DE2512268C3/de
Priority to US05/601,284 priority patent/US4028503A/en
Publication of DK418974A publication Critical patent/DK418974A/da
Publication of DK135251B publication Critical patent/DK135251B/da
Application granted granted Critical
Publication of DK135251C publication Critical patent/DK135251C/da

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DK418974AA 1974-08-07 1974-08-07 Elektromagnetisk lydgenerator. DK135251B (da)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK418974AA DK135251B (da) 1974-08-07 1974-08-07 Elektromagnetisk lydgenerator.
DE2512268A DE2512268C3 (de) 1974-08-07 1975-03-20 Elektromagnetischer Schallerzeuger
US05/601,284 US4028503A (en) 1974-08-07 1975-08-04 Electromagnetic sound generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK418974AA DK135251B (da) 1974-08-07 1974-08-07 Elektromagnetisk lydgenerator.

Publications (3)

Publication Number Publication Date
DK418974A true DK418974A (cs) 1976-02-08
DK135251B DK135251B (da) 1977-03-21
DK135251C DK135251C (cs) 1977-09-05

Family

ID=8131117

Family Applications (1)

Application Number Title Priority Date Filing Date
DK418974AA DK135251B (da) 1974-08-07 1974-08-07 Elektromagnetisk lydgenerator.

Country Status (3)

Country Link
US (1) US4028503A (cs)
DE (1) DE2512268C3 (cs)
DK (1) DK135251B (cs)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US540969A (en) * 1895-06-11 Telephone
FR680855A (fr) * 1929-08-27 1930-05-07 Cie De Construction D Accessoi Appareil producteur de sons actionné par électro-aimant
US3214753A (en) * 1962-05-22 1965-10-26 Automatic Power Inc Sound signal system

Also Published As

Publication number Publication date
DE2512268A1 (de) 1976-02-26
DE2512268C3 (de) 1979-02-01
DK135251C (cs) 1977-09-05
DE2512268B2 (de) 1978-06-01
DK135251B (da) 1977-03-21
US4028503A (en) 1977-06-07

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